Studies indicate that about 10 percent of polar bears weigh more than 1,000 pounds. A biologist studying the bears thinks that percent might be too high. From a random sample of polar bears, the biologist found only 8 percent of the sample weighing over 1,000 pounds. Which of the following is the most appropriate method for the biologist’s study? (A) A one-sample -test for a sample proportion (B) A one-sample -test for a population proportion (C) A one-sample -test for a difference in population proportions (D) A two-sample -test for a difference in sample proportions (E) A two-sample -test for a difference in population proportions

Studies indicate that about 10 percent of polar bears weigh more than 1,000 pounds. A biologist studying the bears thinks that percent might be too high. From a random sample of polar bears, the biologist found only 8 percent of the sample weighing over 1,000 pounds. Which of the following is the most appropriate method for the biologist’s study? (A) A one-sample -test for a sample proportion (B) A one-sample -test for a population proportion (C) A one-sample -test for a difference in population proportions (D) A two-sample -test for a difference in sample proportions (E) A two-sample -test for a difference in population proportions

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 25PFA

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Question

Studies indicate that about 10 percent of polar bears weigh more than 1,000 pounds. A biologist studying the bears
thinks that percent might be too high. From a random sample of polar bears, the biologist found only 8 percent of
the sample weighing over 1,000 pounds. Which of the following is the most appropriate method for the biologist’s
study?
(A) A one-sample -test for a sample proportion
(B) A one-sample -test for a population proportion
(C) A one-sample -test for a difference in population proportions
(D) A two-sample -test for a difference in sample proportions
(E) A two-sample -test for a difference in population proportions

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